Improvement in spring-motors



. LAMKN.

SPRING-MOTOR. No.17ZA56. Y 'Patented Jan.1e,1a7e.

jay] mii WIIIIIIIH l l Al' H." Il: l

N. PETERS, PHOTD'LFIHCGRAPHEYL WASHINGTON, D. C.

` has been obtained.

nrrnn STATES IMPROVEMENT IN SPRING-MOTORS.

Specification forming part of Letters PatentNo. P72456, dated January 18, 1876; applicationfiled October 29, 1875.

To all'whom it may concern:

Beit known that I, EDWIN LAMBKIN, of Sebewain g, in the county of Huron 'and State of Michigan, have invented a new and useful Improvement in Spring-Power, of which the following is a specification Figure lis atop View of my improved power, shown as applied to a hand-car. Fig. 2 is a vertical longitudinal section of the same, taken through the line x Fig. l. Fig. 3 is a front view of the same. Fig. 4 is a detail section of the spring-drum, taken through the line y y, Fig. l. Fig. 5 is a detail section taken through the line z z, Fig. l.

Similar letters of reference indicate correr spending parts.

The object of this invention is to furnish an improved sprin gpower for runnin g street-cars, railroad hand-cars, road vehicles, and driving A machinery, which shall be simple in construction, effective in operation, and convenient and reliable in use.

The invention consists in the peculiar construction of the spring-drum, and in means for applying a brake and operating a shifting mechanism, as will be hereinafter more fully described.

A represents the platform. B represents the frame-work, C the wheels, and D the axles, of a railroad hand-car. E is a shaft, placed parallel with the axles D, and the journals of which work in bearings attached to the frame-work B. Upon the shaft Eis placed a drum, F. G are springs, two of which are coiled together around the shaft E, and are placed within a ring or band, H, which is placed within the drum F. One end of the pair of springs Gis attached to the shaft E, and their other ends are secured to the ring or band H. 'Ihe band or ring H is provided with lugs, which interlock with lugs formed upon the drum F, to cause said ring and drum 4to move together.. A thin metallic disk or washer, I, is then placed upon the shaft E, and another pair of springs and their ring are placed upon the shaft E within the drum F, and so on until a spring of the desired power A spring thus formed will be much less liable to break than a spring of the same power formed in one piece. To l,the shaft E is rigidly attached a ratchet-wheel, J,

with the teeth of which engages the springpawl K. Thepawl K is pivcted to alever, L, the lower end of which is pivoted to the shaft E. The upper end of the lever L projects up through a slot in the platform Aiuto such a position that it may be conveniently reached and operated to turn the ratchet-wheel J and shaft E to coil the springs G. To the frame B is attached a spring pawl, M, which rests upon the teeth of the ratchet-wheel J, and prevents the shaft E from being turned back by the tension of the springs G. To the drum ,Fis attached, or upon it is formed, a bevel-gear wheel and cap for closing the end ofthe drum N, the teeth of which mesh into the teeth of a bevel-gear wheel, O, attached to the shaft P. The shaft P is placed at right angles with the axles D and shaft E, and its journals revolve in bearings attached to the frame B. To the forward end of the shaft P is attached a large bevelgear wheel, Q, which is placed just t in the rear ofthe axle D, so that its teeth may mesh into the teeth of `bevel-gear wheels attached to said axle D. R are two bevel-gear wheels attached to a sleeve, S, placed upon the axle D, and secured by a tongue and groove, a pin and slot, or other means that will allow it to have alongitudinal movement while carrying the axle D with it in its revolution. The gear-wheels R are attached t0 the sleeve S in such positions that either may be thrown into gear, and both may be thrown out of gear, with the gear-wheel Q by sliding the sleeve S upon the axle D. To the shaft I), between the gearwheels O Q, is attached a pulley or drum, T, around which passes a strap, U, one end of which is attached to a pin or bolt, V, let into or otherwise secured to the frame B. The other end of the strap U is secured to one end of a bar, W, the other end of which is pivoted to the frame B. To the bar W, near its inner end, is attached a lug, w', to receive the end of the short arm of the bent lever X, the middle part of the said short arm of which is pivoted to a block or coupling, Y, pivoted to the frame B, so that the long arm of the lsaid lever X may have a langitudinal and transverse movement with respect to the car. To the forward side of the lever X, at its bend, is attached a fork, Z, which takes hold of the arm A rigidly attached to. the bar B. The bar B slides in keepers attach ed to acrossbar ofv theframe B, and has an arm, C', attached to it, which enters a groove in the sleeve S, so that the said sleeve maybe moved longitudinally, to

throw the gear-wheels R into and out of gear.

with the gear-wheel Q, by the lateral move- Inent of the lever X. D' is a T-shaped guide, the stem of which is attachedto the frame B, and is forked to give it a rigid support. When not in use the lever X rests in the recess be-4 tween the fork and the T of the guard orA Y guide D'. To use the-lever D it is moved t0 the rear side of the T-guide D,'which depresses the bar W, and draws the brake-strapl U tightly around the pulley T, so that the shaft'P cannot turn While the sleeve S` and gear-wheels R are being shifted. is then moved laterallyv to shift the sleeve S and gear-'wheels R, to cause the spring-power to lnove the car forward or' backward', or to throw it outot'- gear, as may be desired'. The spring Gr may be coiledby operating the lever L', or by a small engine, and can be kept coiled" easily while-propelling` the caror machine-by operatingthe lever L.

When the power isapplied tostreetlcarsfan extra springmay be used in starting the car, l

The vleverX and described;

l and thrown ont; ot.. gear when. the-said car: has

started.

Having thus described my invention', I claim nas new and desire to secure by Letters Patent- 1. Thecombinatiomin a` springfmotor, of thev drum F, combinedj end. cap and bevelwheel N, spring G, rings H, and interposed disk'ordisksl with.l the shaft E to be driven,

all constructedand operating as herein set forth.

2. The, combinationv of thepulley or drum T, the strap U, the pivoted bar W, and the bent lever X with the shaft P and the gearwheels N O Q R, that connect the spring-drum G H F with 'the axle or shaftDA tobe driven, substantially as herein shown and' described.

3. The combinationof. the fork' Z",the.arms AC, the sliding barB", andfithe sliding. sleeve S with: thek gear#wheelsY R, of the axle or shaft D, and with the; lievery X, that; operates thev brake T U W, snbstantiallyasshereinshown Witnesses? RICHARD M A 311mm, ALBERT GasunieY 

